Does Snapchat work on Sony products?

So my other half decided to download snapchat. When he tried to register it said he was already a user so he tried hitting "forgot password" button, entered his email address and it says user not known!! So I tried it on my iPad and it let me register him no bother but when he tries to log in it says it's the wrong password! So are snapchat and sony having marital issues or does snapchat just not work on Sony full stop?